Schools in Ilocos Sur

By Mark Anthony Llego · Published 1 November 2026 · Updated 3 November 2026

SY 2024-25 data from DepEd as of 25 October 2025

Summary

Enrollment in the schools of Ilocos Sur fell 4.1% from SY 2023-24, with ALS not counted: public schools fell 4.2% and private schools fell 0.1%. In SY 2024-25 its 634 schools held 147,067 learners, with another 2,323 in ALS, and its public schools had 6,575 teachers. Among the four provinces in Region I, it has the third most learners and the third most learners per teacher in public schools.

Of the learners in schools, 88% are in public schools, against 85% nationally, and 11% are in private schools, against 14% nationally. All 560 reporting public schools have electricity, but 81, or 14%, have no internet, against 11% in Region I. The 556 public schools with FY 2025 MOOE received ₱441.5 million.

Its 34 cities and municipalities are listed on the page, and its figures by sector and level are given in charts and tables.

Schools: 634; Up 1 from SY 2023-24; 561 public, 68 private, 5 SUCs and LUCs
Community learning centers: 235; Up 21 from SY 2023-24
Learners: 149,390; Down 5,978 from SY 2023-24
Teachers: 6,575; Down 35 from SY 2023-24
Classrooms: 5,613; Down 41 from SY 2023-24

Key findings

For SY 2024-25 and all schools, whatever is chosen above.

Ilocos Sur has the 3rd most learners of the 4 provinces in Region I, and the 3rd most learners per teacher in public schools.
Enrollment in schools fell 4.1% from SY 2023-24 (ALS not counted); public schools fell 4.2%, private schools fell 0.1% and SUC and LUC schools fell 26.9%.
Of the learners in schools, 88% are in public schools (85% nationally), 11% in private schools (14% nationally) and 1% in SUC and LUC schools (1% nationally).
Leaving out 1 school whose figures are under review, the largest schools are Narvacan National Central High School (3,894 learners), Candon National High School (3,848 learners) and Sinait National High School (3,199 learners).
Enrollment grew fastest at Great Heights Learning Center of Ilocos Sur, Inc. (+31%) and fell most at University of Northern Philippines (−26%), among schools with 100 or more learners in both years.
Leaving out 3 schools whose figures are under review, the most crowded public classrooms are at Paoc Integrated School, with 90 learners per classroom.
Of the 560 reporting public schools, all have electricity; 4 (1%) have no water, against 1% in Region I; 81 (14%) have no internet, against 11% in Region I.
The 556 public schools here with FY 2025 MOOE received ₱441.5 million. Across the 553 with FY 2024 MOOE and SY 2024-25 learners, FY 2024 MOOE came to ₱2,498 for each learner.

Learners

SY 2024-25: 149,390 learners, 147,067 in schools and 2,323 in community learning centers.

Learners, SY 2024-25
Learners	Number
All learners	149,390
In schools	147,067
In community learning centers (ALS)	2,323
Male	76,969
Female	71,990
Not broken down by sex	431

Learners by level and sector, SY 2024-25: at least these numbers

Learners by level and sector, SY 2024-25: at least these numbers; 431 not broken down by level
Level	Public schools	Private schools	SUCs and LUCs	Community learning centers (ALS)	Total
Elementary	71,711	4,177	218	0	76,106
Junior High School	37,480	8,128	583	0	46,191
Senior High School	19,716	4,101	524	0	24,341
ALS Basic Literacy Program	0	0	0	54	54
ALS A&E elementary	0	0	0	240	240
ALS A&E secondary	0	0	0	2,027	2,027

Learners by grade and sex, SY 2024-25: at least these numbers

Learners by grade and sex, SY 2024-25: at least these numbers; 431 not broken down by grade
Grade	Male	Female	Total
Kindergarten	4,571	4,154	8,725
Grade 1	5,232	4,667	9,899
Grade 2	5,323	4,871	10,194
Grade 3	5,723	5,182	10,905
Grade 4	6,293	6,101	12,394
Grade 5	5,197	4,729	9,926
Grade 6	7,058	6,601	13,659
Grade 7	6,640	6,194	12,834
Grade 8	5,180	4,734	9,914
Grade 9	5,768	5,763	11,531
Grade 10	5,902	6,004	11,906
Grade 11	6,256	6,065	12,321
Grade 12	6,047	5,973	12,020
Special needs, non-graded (elementary)	270	134	404
Special needs, non-graded (junior high)	3	3	6
ALS Basic Literacy Program	33	21	54
ALS A&E elementary	165	75	240
ALS A&E secondary	1,308	719	2,027
Broken down by grade	76,969	71,990	148,959

Senior High School learners by track, SY 2024-25

Senior High School learners by track, SY 2024-25
Track	Learners
Academic	19,876
Technical-Vocational-Livelihood	4,691
All tracks	24,567

ALIVE (Arabic Language and Islamic Values Education) learners by level and sex, SY 2024-25
Level	Male	Female	Total
Kindergarten	7	4	11
Elementary	38	22	60
Junior High School	1	1	2
All	46	27	73

Indigenous peoples (IP) learners by level and sex, SY 2024-25
Level	Male	Female	Total
Kindergarten	599	563	1,162
Elementary	5,168	4,774	9,942
Junior High School	3,072	2,922	5,994
Senior High School	1,301	1,226	2,527
All	10,140	9,485	19,625

Learners in alternative delivery modes (ADM) by program and sex, SY 2024-25
Program	Male	Female	Total
Distance Education	0	1	1
Enhanced-Instructional Management by Parents, Community and teachers	65	66	131
Modified In-School Off-School Approach	1	1	2
Open High School Program	4	8	12
Other School-Initiated Intervention	190	178	368
All	260	254	514

Schools and community learning centers

SY 2024-25: 634 schools and 235 community learning centers.

Schools and community learning centers by sector, SY 2024-25

Schools and community learning centers by sector, SY 2024-25
Sector	Number
Public schools	561
Private schools	68
SUCs and LUCs	5
Community learning centers (ALS)	235
All	869

Schools by curricular offering, SY 2024-25

Schools by curricular offering, SY 2024-25
Offering	Number
Elementary only	494
Elementary and junior high (K to 10)	26
Kindergarten to Grade 12	29
Junior high only	2
Junior and senior high	78
Senior high only	5
Community learning centers (ALS)	235

Schools by subclassification, SY 2024-25
Subclassification	Number
DepEd managed	560
Community learning centers (ALS)	235
Sectarian	40
Non-sectarian	28
State universities and colleges	4
DOST managed	1
Local universities and colleges	1

School personnel

SY 2024-25: 6,575 teachers and 1,200 non-teaching personnel in public schools.

Public school personnel by type, SY 2024-25
Type	Number
Teachers	6,575
Non-teaching personnel	1,200
All personnel	7,775

Public school teachers by level, SY 2024-25

Public school teachers by level, SY 2024-25
Level	Teachers
Elementary	3,942
Junior High School	1,848
Senior High School	785
All teachers	6,575

Learners per teacher by level, public schools, SY 2024-25

Learners per teacher by level, public schools, SY 2024-25
Level	Learners per teacher
Elementary	18.2
Junior High School	20.3
Senior High School	25.1

School resources

SY 2024-25: 5,613 classrooms and 9,002 toilets in public schools.

Classrooms: 5,613
Seats (approximate): 120,620
Toilets: 9,002
Functional computers: 13,420
Faucets: 23,402; 21,949 with water

Classrooms, seats, toilets and computers by level, public schools, SY 2024-25: shares of each by level

Classrooms, seats, toilets and computers by level, public schools, SY 2024-25, with learners per resource
Measure	Elementary	Junior High School	Senior High School
Classrooms	3,972	1,061	580
Learners per classroom	18.1	35.3	34.0
Seats (approximate)	76,545	29,510	14,565
Learners per seat	0.9	1.3	1.4
Toilets	6,865	1,413	724
Learners per toilet	10.5	26.5	27.2
Functional computers	6,176	4,982	2,262
Learners per computer	11.6	7.5	8.7

Public schools with a water supply, by level, SY 2024-25

Public schools with a water supply, by level, SY 2024-25: number of schools
Level	With water supply	Without
Elementary	495	4
Junior High School	96	0
Senior High School	71	4

Public schools by electricity supply and level, SY 2024-25

Public schools by electricity supply and level, SY 2024-25: number of schools
Level	Grid supply	Grid and off-grid supply
Elementary	487	12
Junior High School	96	0
Senior High School	75	0

Public schools with internet access, by level, SY 2024-25

Public schools with internet access, by level, SY 2024-25: number of schools
Level	With internet access	Without
Elementary	420	79
Junior High School	87	9
Senior High School	61	14

Toilets in public schools by type, SY 2024-25

Toilets in public schools by type, SY 2024-25
Type	Toilets
Female	1,869
Male	1,706
Shared	5,170
For persons with disabilities	257
All toilets	9,002

Faucets in public schools, with and without water, SY 2024-25

Faucets in public schools, with and without water, SY 2024-25
Faucets	Number
With water	21,949
Without water	1,453
All faucets	23,402

Public schools with each facility, SY 2024-25
Facility	Schools
Entrance Gate	528
School Garden	518
Playground	439
Offices	427
Exit Gate	401
Covered Court	359
Temporary Perimeter Fence	311
Canteen	305
Permanent Perimeter Fence	268
Computer Room	257
Clinic	228
Library/Learning Resource Center	227
Home Economic Room	225
Paved Pathway	180
Supply Room	110
Faculty Room	109
Conference Room	88
Roofing	86
Science Laboratory	82
Industrial Arts Room	64
Solar Panel	52
Data File Room/Records Room	48
Museum	25
Flood Marker	23
Student Co-Curricular Center	17
Youth Development Center	15
Bike Rack	7
Gymnasium	5
Speech Laboratory	4

Cities and municipalities

34 cities and municipalities, each with its SY 2024-25 schools and learners in every sector.

Cities and municipalities in Ilocos Sur, SY 2024-25
Name	Schools	Learners	Teachers (public)	Learners per teacher (public)
Alilem	15	1,350	105	12.7
Banayoyo	9	1,407	80	17.2
Bantay	23	6,317	225	20.5
Burgos	11	2,334	114	18.7
Cabugao	32	7,909	317	21.4
Caoayan	15	2,392	154	15.2
Cervantes	28	4,306	201	19.1
City of Candon	46	13,995	569	21.1
City of Vigan (Capital)	34	16,898	680	20.6
Galimuyod	10	1,338	80	15.8
Gregorio del Pilar (Concepcion)	11	939	62	10.8
Lidlidda	7	1,034	50	18.1
Magsingal	25	6,259	244	22.1
Nagbukel	9	1,328	75	16.5
Narvacan	40	10,240	466	20.8
Quirino (Angkaki)	17	2,195	103	16.8
Salcedo (Baugen)	19	2,117	137	15.3
San Emilio	12	1,248	93	13.4
San Esteban	5	1,551	72	21.3
San Ildefonso	6	1,788	56	31.7
San Juan (Lapog)	27	5,751	271	19.9
San Vicente	9	2,746	117	19.3
Santa	14	2,613	135	17.5
Santa Catalina	9	1,883	84	20.4
Santa Cruz	31	7,837	243	22.8
Santa Lucia	19	6,827	227	20.0
Santa Maria	25	6,345	276	20.6
Santiago	15	3,640	141	22.1
Santo Domingo	23	5,479	248	19.2
Sigay	8	415	36	11.5
Sinait	20	6,134	295	20.5
Sugpon	9	717	48	14.6
Suyo	22	2,121	167	12.4
Tagudin	29	9,937	404	21.5

About this data

431 learners in SY 2024-25 are counted in the totals but not broken down by grade, level or sex, so those charts show at least these numbers.
Teachers, classrooms and facilities are for public schools only: DepEd's public report has them for no other schools.

Each school year's figures for Ilocos Sur count the schools DepEd placed there that year. Figures come from DepEd's school data for SY 2023-24 and SY 2024-25 as of 25 October 2025. How the data was checked

Report a correction to the figures for Ilocos Sur